This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A014734 #14 Nov 19 2018 02:34:22 %S A014734 1,1,1,1,1,1,121,121,1,1,1,1,3249,3249,1,1,1418481,1418481,1,1,61009, %T A014734 18429849,243953161,243953161,18429849,61009,1,1,1,1,1026169,1026169, %U A014734 1,1,23298053769,23298053769,1,1,16670889,228743149441,103788925659225 %N A014734 Squares of odd numbers in triangle of Eulerian numbers. %F A014734 a(n) = A014459(n)^2. - _Sean A. Irvine_, Nov 18 2018 %Y A014734 Cf. A008292, A014735, A014459. %K A014734 nonn,easy %O A014734 1,7 %A A014734 _Mohammad K. Azarian_ %E A014734 More terms from _R. J. Mathar_, Oct 21 2007